Improved shaft for drilling



'NITED STATESV PATENT OFFICE..

JAMEs H. GLAPHAM,

or NEW YORK, N. Y.

IMPROVED SHAFT FOR DRlLLlNG.

To all whom it 'may concern:

Be it known that I, JAMES Il. GLAPHAM, of the city and State of New York, have invented and made a certain new and useful Improvenient in Tubular Rods for VVell-Drills and Pumps; and I do hereby decla-re the following to be a full, clear, and exact description of the same, reference being had to the annexed drawings, making part of this specification, wherein- Figure 1 is a longitudinal section of said tubular rod, and Fig. 2 isa crosssection at the line a' Similar letters denote the same parts.

Tubes have heretofore been made for wells with screws at the interior and exterior of the respective lengths, so as to screw said lengths together; but difficulty has heretofore been experienced in clamping the respective lengths while being screwed together. The tubes have frequently to be drawn up and taken apart hence the surfaces of the tubes become smooth where the wrenches or tongs are applied, and generally being oily, the use of tubes for pumprods or for drill-rods has been generally abandoned.

'lhe nature ot' my said invention consists in atubular rod for well-drills and pum ps, formed with male and female screws at the ends of the respective lengths, and with polygonal depression in the pipe near the ends of the lengths to receive the wrench or clamps employed in connecting or disconnecting the screw-couplings.

In the drawings, a b are two lengths of tubes or portions of them, the portion a having a male screw on its exterior surface, said end being contracted or swaged down sufficiently to screw into the female screw cut inside one end ofthe pipe b. The pipe is compressed or swaged into a polygonal form near the ends of the lengths in positions convenient for being seized by the stationary clamp near the mouth of the well, and for the reception of the wrench or tongs employed for screwing or unscrewing the lengths ot' tubing. These depressions are shown at c. POIIOIIS 0f the tubes may be formed with any dCSiI'ed Humber 0I sides. I have shown six.

Plugs of wood or other materia] may bp, in. ser-ted in each length otl pipe to prevent the tube lling in Acase of leakage, so that there will be but little weight of the tube in operating either a drill or working the pump, because said tube, being hollow, will partially iioat. lf desired, washers of leather or other antifrietion material may be clasped around the tubular pump or drill rods at suitable dis tances apart to prevent the said rod rubbing against the interior of the well in case the said rod is not perfectly straight.

What l claim, and desire to secure by Let ters Patent, is-

'lhe tubular rod for well-drills or pumps, formed lwith polygonal depressions for the reception ot the clamps or wrenches, as specified.

In witness whereof I have hereunto set my signature this 4th day of December, A. D. 1865.

JAS. HY. CLAPHAM.

Witnesses:

LEMUEL W. SERRELL, Guns. H. SMITH.l

These polygonal l 

